Independent. Not affiliated with any government agency.Rev. Oct 16, 2026

C3PAO

BARR Advisory

BARR Advisory is a C3PAO that lists assessments, gap assessments and remediation for defense companies. BARR Advisory is listed from its own website as C3PAO. Verify authorization on the Cyber AB Marketplace before you hire.

Last checked Oct 16, 2026.

Firm states: As a Certified Third-Party Assessment Organization (C3PAO) with deep expertise in cybersecurity and defense contracting, BARR guides you through the Cybersecurity Maturity Model Certification (CMMC) assessment process from start to finish.

SourceOct 16, 2026

Services the firm lists

  • Assessments
  • Gap assessments
  • Remediation

Industries the firm lists

  • Defense

Firm website

Verify authorization on the Cyber AB Marketplace

Authorization can change. Always verify on the Cyber AB Marketplace before you hire.

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